Cow milker



E.A. COOK.

' COW MILKER.

APPLICATION FILED APR. 12, 1921.

P atented May 30, 1922.

.. V.. w E N T o v N R W m m NA |n n H r a a h hav m s n: .1 is. l he UNlTtil) til" ()FFICE.

COW MIIJKER.

Application filed April 12,

T 0 all whom it may; concern.

Be it known that EDITH AMY Coon, citizen of the British Empire. residing; at /Voodside. Ahuriri Flah Glenomariu Otagm New Zealand, has invented certain. new and useful Improvements in Cow Milkera of which the following is a specification.

This invention relates to milking machines of any ordinary type and in particular in which there is a claw to which four teat cups are attached. by pipe connections. The defect 0t all milking machines is that they do not strip cows properly of milk and with the result that the cows tend to go dry and ultimately it stripping; is neglected. will go dry. At present this stripp" is done by hand. The object (it this invention to do away with the necessity o'l. stripping; cows by hand and to not them strip iled by the milking machine as part of the process of milking. My invention consists lroadly in this and. if have "found that by making the claw teat cups and connecting pipes approximately ot a total weight of sixty eight ounces avoirdupois that is approximately thirteen and one half ounces more than they usually weio'h strippino: is ctl'ectcd by the machine itseiit or rather the machine open ates so that no stripping; necessary. The weight may be dctarhul c or formed i'ljlteggral with the teat cups and or with the claw. This weight will. vary according; to the type 0i machine used and the weight of its teat cups and attachments and can he arrived at by slight experiment with greater or less weight than about thirteen and one half ounces or than the total weight of sixty eight ounces by addir; to or taking: away pdi'tions of metal or the like adapted for the purpose on the teat cups or claw or connecting; pipes. v I

The preferred form embodying the H1V6iltion is illustrated in the accompanying drawings in which Figure l is a perspective view of a claw and four connected teat cups of a milking; machine with an adjustable weight connected to the claw. Figure 2 is a detail drawing: showing the claw with weia'l'it at tached and the means :tor varying the weight attached and the means tor varying! wei ht. Figure i-l is a perspective view ot the removable weight showing the detachable strips. As is usual the claw 1 is composed of the milk pipe 2 and the vacuum pipe 3 connected together by the transverse 5, 6, 7. The usual rubber milk pipe pipes t,

Specification of Letters Patent.

Patented May 30, 1922.

1921. Serial No. 460,679.

8 and vacuum pipe 9 are attached to the claw. From the transverse pipes l, 5 and 6, 7 respectwely rise the usual rubber pipes 10 11 and i2. 13, 14c, 15 and 16. 17 to the usual teat cups 18, 19, 20 and 21 respectively. To the claw 1 is secured a weighted piece 22 either detachable or fixed but carrying detachable strips 23, 24, 25, 26 of approizi mately one or two ounces weight said strips having holes 27, 28 in them adapted to lit on the pins 29, 30 of the main weight 22.

It will be seen that by removing or adding strips the total. weight can be easily or quickly lessened or increased and accurately adjusted for and according to the circumstances of each case.

As stated in the foregoing paragraph, a total weight of sixty eight ounces would be all that is necessary to successfully strip the udder oi? the average cow of its milk, but when a cow becomes old this weight is not sufficient to aid the milkers in stripping the udder. Therefore, it has been found desirable to add an additional weight of thirteen and one half ounces to the present sixty eight ounces making a total of eighty one and one half ounces, for old cows. Of course this weight may be varied to any intermediate amount, but any further weighting. unless in exceptional cases, would draw blood and cause rupture of the udder.

1 claim 1. In a milking machine having a claw and teat cups connected thereto, the combination with the claw of a weighted piece approximating sixty eight ounces avoirdupo-is substantially as and for the purposes set forth. I

2. In a milking machine having a claw and teat cups connected thereto the combination with the claw of an adjustable weighted piece substantially as and for the.

EDITH AMY COOK.

Witnesses:

DOUGLAS RAMSEY, OwnN E. MAOKIE,. 

